(Delphi DLL) S3 Find Bucket Region

Demonstrates how to find out the region of an S3 bucket.

Chilkat for Delphi Downloads Chilkat non-ActiveX DLL for Delphi Chilkat ActiveX DLL for Delphi * The examples here use the non-ActiveX DLL.

uses
    Winapi.Windows, Winapi.Messages, System.SysUtils, System.Variants, System.Classes, Vcl.Graphics,
    Vcl.Controls, Vcl.Forms, Vcl.Dialogs, Vcl.StdCtrls, AuthAws, Rest, Xml;

...

procedure TForm1.Button1Click(Sender: TObject);
var
rest: HCkRest;
bTls: Boolean;
port: Integer;
bAutoReconnect: Boolean;
success: Boolean;
authAws: HCkAuthAws;
strResult: PWideChar;
responseStatusCode: Integer;
xml: HCkXml;

begin
// This requires the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.

rest := CkRest_Create();

// Connect to the Amazon AWS REST server using the correct region (in this example, "us-west-2")
bTls := True;
port := 443;
bAutoReconnect := True;
success := CkRest_Connect(rest,'s3.amazonaws.com',port,bTls,bAutoReconnect);

// Provide AWS credentials for the REST call.
authAws := CkAuthAws_Create();
CkAuthAws_putAccessKey(authAws,'AWS_ACCESS_KEY');
CkAuthAws_putSecretKey(authAws,'AWS_SECRET_KEY');
CkAuthAws_putServiceName(authAws,'s3');
success := CkRest_SetAuthAws(rest,authAws);

// The bucket name we want to know about is set in the HOST header.
// In this example, we want to find the region for the "chilkat.qa" bucket.
CkRest_putHost(rest,'chilkat.qa.s3.amazonaws.com');

// Send the GET request to query the bucket location.
strResult := CkRest__fullRequestNoBody(rest,'GET','/?location');
if (CkRest_getLastMethodSuccess(rest) <> True) then
  begin
    Memo1.Lines.Add(CkRest__lastErrorText(rest));
    Exit;
  end;

responseStatusCode := CkRest_getResponseStatusCode(rest);
Memo1.Lines.Add('Response status code = ' + IntToStr(responseStatusCode));
if (responseStatusCode <> 200) then
  begin
    Memo1.Lines.Add(CkRest__responseHeader(rest));
    Memo1.Lines.Add(strResult);
    Memo1.Lines.Add('Failed.');
    Exit;
  end;

Memo1.Lines.Add(strResult);

// The result contains XML like this:
// <?xml version="1.0" encoding="UTF-8"?>
// <LocationConstraint xmlns="http://s3.amazonaws.com/doc/2006-03-01/">us-west-2</LocationConstraint>

// Get the "us-west-2" from the XML
xml := CkXml_Create();
success := CkXml_LoadXml(xml,strResult);
Memo1.Lines.Add('region = ' + CkXml__content(xml));

CkRest_Dispose(rest);
CkAuthAws_Dispose(authAws);
CkXml_Dispose(xml);

end;